81.
Match the metals listed in Group 1 with the most. appropriate extraction routes listed in Group 2.
Group 1 Group 2
P. Al 1. Blast Furnace
Q. Ti 2. Matte Srrielting
R. Cu 3. Electrolysis of Fused Salts
S. Fe 4. Halide Metallurgy

82.
Which of the following statements regarding Kroll's process is not correct?